Results 221 to 230 of about 704,528 (294)
Some of the next articles are maybe not open access.
The Laurentian rocks and metamorphism
Transactions of the Edinburgh Geological Society, 1885In the early days of geology, as geologists are aware, granite and the associated highly metamorphic rocks were called ‶Primary Rocks,″ as from their position they were supposed to be the oldest rocks. This misnomer, in the early days of geology, was not an unnatural one, as these early observers supposed that strata accumulated by a process very ...
openaire +2 more sources
Metamorphism of Granitoid Rocks
2002Granitoid rocks comprise granite, alkali-feldspar granite, granodiorite and tonalite. They constitute the largest portion of the continental crust. Granitoid gneisses, commonly migmatites, are in fact the dominant rock type of the continents. Because the main constituents — alkali-feldspar, plagioclase, quartz, biotite, muscovite, hornblende — are ...
Kurt Bucher, Martin Frey
openaire +2 more sources
2021
In this chapter, all metamorphic rocks of Iran have been studied and evaluated from the perspective of metamorphic facies, protoliths and their relationship with magmatic and orogenic phases. The distribution of metamorphic rocks is described along with the geological map and the grade of metamorphism.
openaire +2 more sources
In this chapter, all metamorphic rocks of Iran have been studied and evaluated from the perspective of metamorphic facies, protoliths and their relationship with magmatic and orogenic phases. The distribution of metamorphic rocks is described along with the geological map and the grade of metamorphism.
openaire +2 more sources
An experimental study on rock damage and its influence in rock stress memory in a metamorphic rock
Bulletin of Engineering Geology and the Environment, 2020V. Srinivasan +3 more
semanticscholar +1 more source
Identification and zonation of deep-seated toppling deformation in a metamorphic rock slope
Bulletin of Engineering Geology and the Environment, 2020Wei-hua Zhao +2 more
semanticscholar +1 more source
Nature, 1954
The Origin of Metamorphic and Metasomatic Rocks A Treatise on Recrystallization and Replacement in the Earth's Crust. By Prof. Hans Ramberg. Pp. xvii + 317. (Chicago: University of Chicago Press; London: Cambridge University Press, 1952.) 75s. net.
openaire +2 more sources
The Origin of Metamorphic and Metasomatic Rocks A Treatise on Recrystallization and Replacement in the Earth's Crust. By Prof. Hans Ramberg. Pp. xvii + 317. (Chicago: University of Chicago Press; London: Cambridge University Press, 1952.) 75s. net.
openaire +2 more sources
The International Journal of Advanced Manufacturing Technology, 2023
S. Kaya, G. Aydin, I. Karakurt
semanticscholar +1 more source
S. Kaya, G. Aydin, I. Karakurt
semanticscholar +1 more source
DENSITIES OF METAMORPHIC ROCKS
GEOPHYSICS, 1971Although metamorphic rocks comprise a large part of the crystalline crust, relatively few data concerning metamorphic rock densities are available. In this paper, we present rock densities from seven different metamorphic terrains. Mean densities for rock types range from [Formula: see text] for biotite granite gneiss to [Formula: see text] for ...
openaire +2 more sources
Metamorphism and metamorphic rocks [PDF]
, 2012 Jochen Bundschuh, Guillermo E. Alvarado
openaire +1 more source
A classification of metamorphic rocks
Geological Society of America Bulletin, 1917Introduction The purpose of this paper is to present a comprehensive classification of metamorphic rocks, the attempt being made to work out a satisfactory scheme without the introduction of new terms. In this proposed classification the main principles are based on (1) origin of the rocks, (2) rock structure, and (3) composition.
openaire +2 more sources